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Introduction to SQL

Introduction to SQL
Which of the following do you need to consider when you make a table in SQL?

All of these
Data types
Default values
Primary keys

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Introduction to SQL
Data manipulation language (DML) commands are used to define a database, including creating, altering, and dropping tables and establishing constraints.

True
False

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Introduction to SQL
Table Employee has 10 records. It has a non-NULL SALARY column which is also UNIQUE.The SQL statementSELECT COUNT(*) FROM Employee WHERE SALARY > ANY (SELECT SALARY FROM EMPLOYEE);prints

0
9
5
10

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Introduction to SQL
The result of a SQL SELECT statement is a(n) ________ .

file
form
report
table

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Introduction to SQL
............. joins two or more tables based on a specified column value not equaling a specified column value in another table.

OUTER JOIN
NON-EQUIJOIN
EQUIJOIN
NATURAL JOIN

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Introduction to SQL
SQL data definition commands make up a(n) ________ .

DDL
XML
DML
HTML

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